This has not been my experience with the phaser algo. What amp do you use? Are your settings particularly bassy? A fix would of course be an EQ pedal down the chain with a high pass, probably somewhere around 150-250Hz or so.
Thanks for your reply. I tested on studio monitors and amps and also compared it to my other phaser pedals and Axe fx. I don’t use bassy setting on my amps. I also compared it to the dry/bypassed sound. The dry sound doesn’t have too much bass.